<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta http-equiv="X-UA-Compatible" content="IE=edge">
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  <title>Document</title>
</head>

<body>
  <script>
    let array = [2, 6, 18, 15, 40]
    let array1 = []
    let sum = 0
    for (let i = 0; i < array.length; i++) {
      if (array[i] % 3 === 0 && array[i] % 2 === 0) {
        sum += array[i]

        array1.push(array[i])
      }
    }
    console.log(`能被3整数的偶数的和${sum}`);
    console.log(`能被3整数的偶数的和的个数${array1}`);

  </script>
</body>

</html>